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Finding the Fourth Proportional to 886,874.40, 1,330,484.40 and 354,304.80

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Solution

The fourth proportional to 886,874.40, 1,330,484.40 and 354,304.80 is: 531,526.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,874.40 : 1,330,484.40 = 354,304.80 : x
  2. Step 2: Convert to fraction form
    886,874.40/1,330,484.40 = 354,304.80/x
  3. Step 3: Cross multiply
    886,874.40x = 1,330,484.40 × 354,304.80
  4. Step 4: Simplify right side
    886,874.40x = 471,397,009,245.12
  5. Step 5: Solve for x
    x = 471,397,009,245.12/886,874.40
  6. Step 6: Final answer
    x = 531,526.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.